From March 28 to 29, 2018, the National Technical Committee on Valve Standardization held a seminar on four industry standards, such as "Valve Opening and Closing Torque Test Rules" drafted by Huangshan Liangye Valve Co., Ltd. The conference is hosted by Mount Huangshan Liang Ye Valve Co., Ltd. Director Wang of Huangshan Technical Supervision Bureau was also invited to attend the meeting and made an important speech.